pptp_inbound_pkt 304 net/ipv4/netfilter/nf_nat_pptp.c RCU_INIT_POINTER(nf_nat_pptp_hook_inbound, pptp_inbound_pkt); pptp_inbound_pkt 596 net/netfilter/nf_conntrack_pptp.c ret = pptp_inbound_pkt(skb, protoff, ctlh, pptpReq, reqlen, ct,